Finding the Fourth Proportional to 6,986.57, 10,482.82 and 3,288.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,986.57 : 10,482.82 = 3,288.72 : x
2. Step 2: Convert to fraction form
   6,986.57/10,482.82 = 3,288.72/x
3. Step 3: Cross multiply
   6,986.57x = 10,482.82 × 3,288.72
4. Step 4: Simplify right side
   6,986.57x = 34,475,059.79
5. Step 5: Solve for x
   x = 34,475,059.79/6,986.57
6. Step 6: Final answer
   x = 4,934.48